Make adding Fuel Additive to your 2005-2006 Jeep Liberty 2.8L CRD a routine during every fill-up. In addition to additives that enhance lubricity and cetane, other additives are designed specifically for cold weather and to reduce fuel gelling and provide winter protection. Additives are formulated to provide your engine with what it needs to improve performance, reduce smoke, and clean engine and fuel system components. Get the Fuel Additives your vehicle needs such as XDP, FPPF, Stanadyne, Lucas Oil, Hot Shot's Secret, Rev-X, and more!